Biomass energy is a research field and academic concept focused on the energy potential inherent in organic matter of recent biological origin. This area investigates the diverse sources of biomass, the various thermochemical, biochemical, and physical processes for converting it into usable energy forms (heat, electricity, biofuels), its environmental footprint, and its role within sustainable energy systems. Its significance lies in its status as a renewable resource, offering potential pathways for reducing reliance on fossil fuels, mitigating greenhouse gas emissions through carbon cycle considerations, and contributing to a circular economy.